Improvement in steam-traps



1 1 7 8 7 2 PATENTE JUL 25 1871 UNiTnn STATES ROBERT BERRYMAN, OF HARTFORD, CONNECTICUT.

IMPROVEMENT IN STEAM-TRAPS.

Specification forming part of Letters Patent No. 117,372, dated July 25, 1871.

To all whom it may concern:

Be it known that I, ROBERT BERRYMAN, of the city and county of Hartford and State of Connecticut, have invented an Improved Steam- Trap; and do hereby declare the saine to be fully described in the followin g specification and represented in the accompanying drawing, of which- Figure l is a side elevation, and Fig. 2 a vertical section of it.

In such drawing, A denotes a closed vessel or case, provided at or near its bottom with an induct, a, and an educt, b, the latter being extended up within the case and made to open into a hollow cylinder, B, arranged in the axis of the case A. The cylinder B is open both at top and bottoni, and is there provided with two valve-seats, c d, to operate with two valves, e j', arranged as represented on a stein or rod, g, projecting down from a bar, lz, at its middle. The said bar h is extended dianietrically across the open end of a bell-iloat or bucket, C, which, closed at top and open at bottoni, is provided with ears or guides t' t' i projecting from it, as shown in Fi gs. 3 and 4, one of such figures being a top view and the other a side elevation ofthe bell-iioat, its valvesteni, and valves.

If, now, we suppose the apparatus to be connected with a steam-heater or coil so that the water of condensation thereof may flow through the induct a into the case A, such water as may be produced will rise within the case until it may meet, and so raise the bell-oat as to draw the valves off their seats. As soon as the said valves are so raised water will iiow through their seatopenings into the cylinder'B and then discharge through the educt b. Thus the apparatus may be used to remove from the heater or coil the water of condensation. By havin g the two valves arranged with seats and the cylinder B as described, the pressure on the stein will be counter- -balanced-that is, the pressure tending to force the upper valve down upon its seat will be balanced by that tending to elevate the lower valve from its sea-t; consequently the apparatus will be very sensitive and cause the water to be discharged to good advantage without there being any unnecessary waste of steam.

I do not claim, broadly, the use of a puppetvalve or inverted tloat, as I am wel] aware that they are old and well-known devices; but

VVha-t I claim as new, and desire tc secure by Letters Patent, is-

In a steam-trap, the combination of the closed case A, the bell-oat or bucket C open at bottoin, induct a', and educt b, provided with stein g and double puppet-valves e f, arranged in the cylinder B, substantially as set forth and described.

ROBERT BERRYMAN.

Witnesses:

R. H. EDDY, J. R. SNOW. 

